Question

我正在尝试使用嵌套表单，但在保存时不断出现此错误 -

uninitialized constant User::Userplan

这是我的型号代码 -

用户

class User < ActiveRecord::Base 
  has_many :userplans
  has_many :plans, :through => :userplans
  accepts_nested_attributes_for :userplans

UserPlan

class UserPlan < ActiveRecord::Base
 belongs_to :plan
 belongs_to :user

计划

class Plan < ActiveRecord::Base
 has_many :userplans
 has_many :users, :through => :userplans

表格

<%= form_for(@user) do |f| %>
 <%= hidden_field_tag "user[userplans][plan_id]", 2 %>
 <%= f.text_field :first_name %></p>

我知道使用hidden_field_tag是错误的，但我不确定更好的方法

感谢您的帮助！

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Rails 3 - has_many通过嵌套表单

1 个答案: